HP LaserJet 4345 Multifunction Printer series - Manual (Page 241)

Misformed characters
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1. Print a few more pages to see if the problem corrects itself.
2. Make sure that the environmental specifications for the printer are being met. (See
Environmental specifications .)
3. The MFP might be due for maintenance. Check this by printing a copy of the supplies
status page. (See Checking the MFP configuration .) If maintenance is due, order and
install the printer maintenance kit or the ADF maintenance kit. (See Performing
preventive maintenance .)
Page skew
1. Print a few more pages to see if the problem corrects itself.
2. Verify that no torn pieces of paper are inside the MFP.
3. Make sure that paper is loaded correctly and that all adjustments have been made. (See
Loading input trays .) Make sure that the guides in the tray are not too tight or too loose
against the paper.
4. Turn over the stack of paper in the tray. Also, try rotating the paper 180°.
5. Make sure that the type and quality of the paper that you are using meet HP
specifications. (See Print media specifications .)
6. Make sure that the environmental specifications for the MFP are being met. (See
Environmental specifications .)
Curl or wave
1. Turn over the stack of paper in the tray. Also, try rotating the paper 180°.
ENWW Correcting print-quality and copy-quality problems 227